I suppose there has always been tiers of joke-tellers versus observational humorists. Nothing wrong with a good joke teller. But there's something striking when a comedian hits a fundamental nerve. When they point out something that nobody had perceived in that way before.
George Carlin, Dave Chapelle, Louis CK tend bat higher at this. (Lots of others, but those come to mind.) And it's a good time to have YouTube, and be able to go through the archives to hear their sets.
Something really special when they turn a mirror to our internal biases or blind spots, and go "have you ever looked at this?"